Massage-machine.



W. G. TRAUTMAN. MASSAGE MACHINE.

APPLICATION FILED MAB. 25,.1910.

Patented Aug. 23, 1910.

2 SHEETS-SHEET 1.

IHVENTOR Waller @Tp-auim an BY 147M451 TED strarns PATENT enrich.

MASSAGE-MACHINE.

Specification of Application filed March 28 Letters Patent.

Patented Aug. 23, 1910. Serial No. 551,957.

To all whom it may concern:

Be it known that I, WALTER G. TRAUT- MAN, a citizen of the United at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Massage-Machines, of which the following is a specification.

My invention relates to improvements in so-called vibrators or massage machines, and the invention consists in certain novel and original constructions and combinations of parts which materially contribute to the utility and convenience of such machines'in which varying strokes or throw of the ap plicator are provided for and there is per; feet control and adjustment of .all strokes by convenientmeans on the outside of the machine, all as hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of my improved machine partially sectioned in its operating parts.

Fig. 2 1s a side elevation of the extension of the machine in which said operating parts are located, and Fig. 3 is a sectional elevation thereof showing the position -of the operat ing parts adjusted as compared with Fig. I. F ig. 4 is a cross section on line rc a2, Fig. 1, and Fig. 5 is a perspective detail of the split spring ring. Figs. 6 and 7 represent sectional elevations of modifications of the invention as hereinafter fully described. Fig. 8 is a plan view of the spring shown 1n Figs.

(5 and 7.

In these several views 0 represents the casing or shell for the electrical motor (not shown) and is provided. with a neck 0 at what may be regarded as its bottom and a handle 0 at its side as usual. An adjusting tube B is threaded in the said neck and the States, residing split flanged portion 4. at its bottom adapted to engage said beveled edge 3 and force the end of the neck intocIamping relations upon the tube B and lock it against rotation. Thesaid tube B itself is outer end so as to give it something of a spring action in connection with the bearing screws 6 therein, and the applicator A is suspended from within this split portion on a split ring R supported oppositely or at two points by conical point-ed bearing screws 6 and on which said ring is adapted to stock more or less in the operation of the applicator.

In Figs. 1 to at inclusive the applicator .is shown as having a headed spindle H separably connected therewith and provided with a relatively reduced stem 7 projected into a sleeve 8 through which operating conuiections are made with the shaft S of the lelectrie motor. The said stem 7 fits closely in said sleeve but is rotatably free therein and has a head 9 provided with opposite pivot cavities engaged by the points of pivot screws 10 through ring R at right angles to the screws 6 supporting said ring. The applicator is disengaged from said head 9 in Fig. 3, and in relation of said screws (Sand 10 are shown in Fig. 4.

The motor or armature shaft S by which the machine is driven has an eccentrica'lly set pin 12 at its end straight with said shaft in its inner half and laterally inclined thereto at an obtuse angle in its outer half (Z relatively as shown, and the head 14.01 sleeve 8 has correspondingly inclined hole or bore 15 in its top through which said inclined portion of crank stem 12 extends more or less according to the working relations of the parts under the adjustments hereinbefore described of tube 15. Thus, it the operating mechanism is mounted on or housedin said tube as will presently appear. The measure or extent of said adjustment is seen by comparison in Figs. 1 and 3, the full limit of inward adjustment being shown in Fig. l and the outward adjustment in Fig. 3. Both adjustments are effected by merely turning the said tube inward or outward on its thread 2 in neck 0, and in any case after such adjustment is made the said tube is locked on neck 0 by thenut N. Said neck has its end split and externally threaded and beveled at its lower edge 3, and the clamping ring shaped nut N about said split extension has an inner beveled or said tubebe adjusted inward, the applicator shaft comprising parts H and 8 will also be moved inward and thrown to inclination proportioned to such adjustment by sliding upward on inclined end d of stem 12. The maximum adjustment inward is shown in Fig. 1, and in this position the applicator gets its greatest throw and isautomatically slowed in proportion to the throw greater pull it causes on the motor. other hand when the minimum adjustment of the parts is made by throwing tube B outward as in Fig. 3 the parts, are brought more nearly into alinement and the applicator has its least throw or gyration, The

by the' On the split at 5 in its measure or degree of gyration or throw can thus be changed through tube B, and as the throw is decreased the strokes or gyrations of the applicator are increased to the same extent by reason of the lighter work on the motor.

In the form of invention, Figs. 1 and 3, a spiral spring 16 is engaged about the upper portion of crank ".em 12 between the end of shaft 3' and head 14: of the sleeve 8 and affords a yielding pressure as between said head and said shaft which accommodates itself to all positions and operations of the immediately associated parts. The recess 15 in the top of head 14 for the angle of stem 12 has its bottom in line with the inclined hole through the head for part d of stem 12, so that the angle of said stem maybe accommodated to varying positions therein between Figs. 1 and 3 in making the adjustments above set forth. A light washer 20 rests the spring 16 on the head 14.

The bearing ring R'is shown and de scribed as a split spring ring, and the spring tendency thereof is inward toward screws 10, so that it will take up any wear that may come in the bearing cavities for said screws. The ring R therefore rocks more or less on its bearings while the vibrator shaft or spindle comprising the parts II and 8, is supported and rocks on the pivot screws 6, thus in effect making a universal joint.

Fig. 6 represents an important modification of the invention and in some respects is the reverse of Fig. 1. Thus in this view the applicator spindle 24 has an'axial bore adapted to receive a stem 30 which in a sense substitutes stem 12 in Fig. 1. This stem has a compound bend beginning with an offset 31 parallel to the body of the stem and having an outwardly inclined straight extremity 32 which passes through a similarly inclined bore or hole in the end of motor shaft S, with a recess behind said bore to permit the said stem to be thrown down and outward in respect. to shaft S to effect adjustments and throw or stroke of applicator more or less as hereinbefore described. In this case, however, a spring 36 fashioned as seen in Fig. 8 is employed instead of spiral spring 16. This spring has a band shaped head sleeved over shaft S, and a recurred spring portion divided pasi the end of said shaft and bearing upon stem 32 at d. The bend of this spring is shown at d. In this construction of parts the maximum stroke of the applicator is obtained by turning tube B inward and the bearing of spring on the stem 32 tends to throw the applicator shaft and the motor shaft more nearly in alinelnent as said tube It is mpre fully withdrawn.

Another modification is shown in Fig. 7. Here the crank pin 12 is set centrally in shaft S, and the sleeve 8 is substantially the same as in Fig. 1 but spring 36 is shown instead of spiral spring 16, although in fact either form of spring will work with this construction or with that shown in Fig. 1. In this case inward adjustment of tube B reduces eccentricity of throw of the applicator, which is just the reverse of Fig. 1, and the-spring 30 is mounted on sleeve 8 instead of shaft S, and bears against the inthe machine in the particulars they cover,

and still further modifications might be suggested to give a still wider range to the principle involved, but the disclosures made are believed to be sufiicient to show what the range of the invention really is as well as the essentials of its details.

In Fig. 6 the intermediate member or sleeve 8 shown in the other views is omitted andthe stem 31 is loosely or rotatably mounted in spindle 24; and constitutes a portion of the so-ealled ,applicator shaft, and also has the crank by which the eccentric positions of the applicator are fixed integral with its upper portion rather than being integral with shaft S. This, however, represents difference in construction and not in operative effect or function.

The spring tension developed in the parts 1G and 36 respectively varies with the angle at which the applicator is adjusted to work and according to the angle or eccentricity of the applicator as compared with the hired alinement of the motor shaft, as plainly illustrated in Figs. 1 and 3, but the essential function of the spring in any case is to hold the member 8 or 30 on which it bears to its seat and thus make said member the same as pnit-ary with the applicator spindle though it does revolve thereon or therein and also hold the adjustments of the crank stem at whatever angle it may be set by the adjusting mechanism.

\Vhat I claim is:

1. In a machine of the class described, a motor shaft, an applicator spindle, a crank connection between said shaft and spindle comprising a nut having a laterally inclined bore and a laterally inclined crank stein slidably confined without rotation in said bore, a fulcrum support for said spindle movably related to said shaft to change the angle of inclination of said spindle, and

means mounted upon one of said elements to hold the crank connection parts in constant working engagement regardless of adjustments.

In a machine of the class described, an applicator spindle adapted to gyrate, a 1'0- tary power shaft, a member rotatively en gaged with said spindle having a laterally inclined portion slidably engaged to rotate with said power shaft, means to bring the applicator spindle nearer to or'farther from said shaft, and a spring tension device adapted to hold said member and spindlein seated working relations and in different working angles in respect to said shaft.

3. In a machine of the class described, a power shaft, an applicator spindle, a member rotatably sleeved upon said'spindle, and said shaft and rotatable member having laterally inclined portions slidably engaged and connected to rotate together without independent rotation, and a spring intervening said parts to hold said member under compression, in combination with an adjustable rocking support for said applicator spindle adapting axial adjustments thereof relatively to said power shaft to change the working angles of. said spindle.

4. In a machine of the class described, a power shaft having a crank stem laterally inclined in respect thereto, an applicator spindle having a fulcrum support movable axially in respect to said shaft, a sleeve rotatively mounted upon said spindle having an inclined portion slidably connected with said crankstem, and a spring mounted between said sleeve and shaft to hold the sleeve upon the stem in any adjusted position of the spindle in respect to said crank stem.

5. In machine of the class described, an applicator and a two-part shaft therefor having one part rotatable in respect to the other,a universal jointsupport for said shaft comprising a split spring ring having rocking bearings and rocking bearings for said shaft in said ring, and a power shaft having an adjustable crank connection with said applicator shaft.

ring having rocking bearings supportingv said applicator shaft and rocking hearings in said tubular member supporting said ring,

said casing having a split extension in which said ring is mounted.

7. In a machine of the class described, a main casing and an applicator shaft, a tube of spring metal on said casing split in its outer end, a split bearing ring of spring metal in the split end of said tube, conical bearing screws oppositely in said tube providing rocking bearings for said nut and conical. bearing screws at right angles to said other screws providing rocking bearings for said applicator shaft.

' 8. In a machine of the classdescribed, a power shaft and an applicator shaft, means connecting said parts adapted to yrate said applicator shaft, and a universa joint for said applicator shaft comprising a split ring of spring metal having a pivoted connection with said applicator shaft and an expansible and contractjble support having a pivoted connection ,with said ring,

9. In a machine of the class described, a power shaft and a gyratory applicator support operatively connected therewith, and a. universal joint connection for said support comprising a split tension member adapted to spring inwardly having pivot enga ement with said support, and a split tension holder adapted to sprin inwardly having pivot connections for sai member.

Witnesses:

R. B. Mosan, F. C. Museum In testimony whereof I aflix my signature 

